• 한국의류산업학회지
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• 제6권4호
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• pp.475-484
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• 2004

The purpose of this study was to suggest the standard sizing system and grading rules according to body types of elderly women. The data were the anthropometric measurements of 329 women aged 60 and older measured in 2001. To determine the effective and useful clothing sizing system, the distribution of hip girth and bust girth of 3 body types which were suggested in KS K 0055 was analyzed, and the significant difference among adjoining hip girth ranges was analyzed, too. And the sizes of major body parts that were used for manufacturing clothing were made to have regular interval between each clothing sizes. From this study, we certified that each different sizing system for 3 body types to manufacture more suitable clothing for elderly women was necessary and suggested the standard size for each body type. And we also suggested the patternmaking sizes that were needed to manufacture ready-made clothing. On the basis of standard size, we suggested the grading rules for 3 body types. And we verified the propriety of the grading rules for 3 body types through the fitting test, and we knew that the grading rules for 3 body types of this study was very useful to manufacture clothing for elderly women.

• Journal of the Korean Wood Science and Technology
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• 제41권4호
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• pp.337-345
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• 2013

국산 원목의 유통체계 개선을 위해서는 원목 품질을 신뢰할 수 있는 있는 등급체계가 정착되어야 한다. 원목시장의 현실과 괴리된 원목규격의 개선을 위해 국내에서 생산되는 원목 현황과 원목이 사용되는 시장에 대한 분석이 필요하다. 이를 위해 2010년과 2011년에 국내 5개 지방산림청에서 생산 매각한 천만 본 이상의 원목자료를 수집하여 각 수종별로 경급과 재장을 분석하였다. 이를 바탕으로 원목규격의 경급과 재장구분 기준에 대한 개선방안을 모색하고자 하였다. 본 연구 주요결과를 요약하면 다음과 같다. 국산 침엽수 원목의 경급은 100~160 mm 범위의 소경재가 대부분을 차지하여 현행 원목규격의 재종구분이 현실에 비해 다소 과도하게 설정되었음을 확인할 수 있었다. 원목의 경급분포는 수종별로 서로 상이한 분포특성을 보여 수종별로 차별화된 경급기준의 필요성이 제기되었다. 국내에서 생산되는 원목의 재장이 수종마다 서로 상이하고, 제재용으로 선호되는 재장을 적극적으로 생산하지 못하는 문제점을 반영하여 재장에 관한 기준이 원목규격에 포함될 필요가 있다는 점을 확인하였다. 이러한 결과를 바탕으로 3개 수종군, 6개 재종의 새로운 침엽수 원목 구분체계를 제안하였으며, 각 등급에 적합한 지름 및 재장기준을 제시하였다.

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2008년도 추계학술대회논문집
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• pp.593-594
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• 2008

The purpose of this study is to review and to suggest improvement concerning floor impact noise section of the housing performance grading indication system. After a result, the main improvement is to resolve the discrepancies in the rules or regulations such as design specification(standard floor system) or design performance(accredited floor system) and as-built performance like 58 dB.

• 한국의류산업학회지
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• 제11권5호
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• pp.771-778
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• 2009

There may be some problems in size fitness for ready-made-clothes purchasers with fatty body shape especially for them with abdominal obesity. The purpose of this study was to improve the wearing comfort of Middle-aged women slacks by setting grading points and developing grading rules proper to the abdominal obesity. The subjects in this study was over $25kg/m^2$ of the BMI, over 85cm of waist, and over 0.8 of WHR. A total of 176 Middle-aged women satisfyingthem were enrolled. The results of this study are as follows: (1) The majority segment is 85-94 size accounting for the 11.36% of subjects. (2) The measurements on 11 size from three groups after drawing slacks pattern on them revealed that the changed values of slacks front and back on the grading point marked are differ, indicating that it is needed to apply body shape and age specific grading rule. (3) The evaluation on the appearance for wearing slacks showed relatively high score, indicating that the grading between sizes within each group was effective. The studies on the body size distribution on each obesity pattern and on the setting size system reflecting characteristics of each body shape should be performed continuously.

• 한국의류산업학회지
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• 제13권6호
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• pp.934-942
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• 2011

This study was intended to analyze conventional grading increments and methods for middle-age men's pants, and to suggest new grading guidelines that will enable to improve satisfaction with size and silhouette as a result of combining the concept of grading, which help maintain the ratio and proportion by sizes as one of ready-made apparel's advantages, with body form oriented and aesthetic approaches. In the apparel industry, the current sizing specifications and methods adopted by relevant companies, as well as the characteristics of body forms of men aged 35 to 55 years were comparatively analyzed to find out problems and ultimately to suggest their solutions or improvements. It was considered that as the conventional grading practices used in the industry were customary on the basis of the past experiences, it was required to take the body forms of target consumers into account and also, to reconsider the conventional grading methods. Analyses of sizing and specifications by brands show that 4 to 19 sizes including 82 or 84 as standard size have been produced. Since men's apparel has a large number of sizes with the large range of sizes, grading is critically important. As silhouettes depend on the distribution of grading rule values at each point of increment pattern in the main regions during grading, it is necessary to consider both size grading and form variations. To maintain an appropriate silhouette with keeping the angle of center back line of a pattern, it is desirable to set the ratio of side line part to center part from the crease line to approximately 3:7. It is required to diversify the values of grading rules according to different sizes and pattern regions in consideration for the body forms of key consumers. In addition, if the natural lines of designs and patterns for the width increments of waist circumference and hip circumference, the increments of hip width in pant's front and back panels, the ratio of grading rule values of the right and left sides of crease line, knee circumference, thigh circumference and so on are taken into account, grading will be satisfactory in the all aspects of size, silhouette and ratio.

• 한국의류산업학회지
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• 제12권2호
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• pp.194-202
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• 2010

There may be some problems in size fitness for ready-made-clothes purchasers with Obese body shape. The purpose of this study was to improve the wearing comfort of Junior-High School Girls' slacks by setting grading points and developing grading rules proper to the obesity. The subjects in this study was over 23 kg/m2 of the BMI. The subjects were 124 Junior-High School Girls of 12 to 14 year-old. The results of this study are as follows: (1) The size intervals of waist girth and hip girth were 3 cm and 4 cm respectively. The sizing system, which had frequencies more than 5%, was classified 8 cases. The majority segment is 76-97 size accounting for the 11.29% of subjects. (2) The measurements on 8 size from two groups after drawing slacks pattern on them revealed that the changed values of slacks front and back on the grading point marked are differ, indicating that it is needed to apply body shape. (3) The evaluation on the appearance for wearing slacks showed relatively high score, indicating that the grading between sizes within each group was effective. The studies on the body size distribution on each obesity pattern and on the setting size system reflecting characteristics of each body shape should be performed continuously.

• 한국의류학회지
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• 제27권1호
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• pp.48-59
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• 2003

The purposes of this research lie in developing dress shirts pattern targeting adult males between 25-34 years of age and presenting the rules of grading according to the real circumstances of dress shirts industry. The findings of this research are as follows: 1. The surveyed companies kept different size systems ranged from 5 to 18. They kept different size systems each other, and the pattern making was conducted by modification of the collar size, chest size, etc of the pattern developed through each company's know-how. All the surveyed companies were using point method of grading. 2. The method of the research pattern was to adopt N/6+1(cm) for the width of the back of the neck. N/6 for the front neck, N/6+2 for the depth of the front neck, B/6+7 for the shoulder width, B/6+5.5 for the breast width, B/4+5 for the whole width (back), B/4+4 for the whole width (front), B/4+3.5 for the depth, AH/2+0.5 for the back arm hole, AH2+1 for the front arm hole. 3. The grading rule was made after classifying the sizes into 14 centered on the standard size 40. Through the wearing test of research grading rule, 1 found the suitability of grading size 36 and 43 satisfiable.

• 한국의류학회지
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• 제47권5호
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• pp.839-852
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• 2023

This study examined personal protective clothing, specifically the D (M, L, XL) and C (L, XL, 2XL) levels with high sales rates. The goal was to collect essential data for developing Korean personal protective clothing. There were eight and twelve patterns for the D-level and C-level, respectively. While the pattern dimensions were similar, the chest and waist circumferences (relaxed) were larger in the C-level, and the waist (extended), hip, upper arm circumference, and total lengths were larger in the D-level. The D-level wear sensation worked well for average-sized Koreans in their twenties, but the C-level caused discomfort in multiple areas, such as the face, arms, armpits, hips, crotch, thighs, and knee during movement. Consequently, this region required pattern adjustments and resetting for improved comfort. The grading rules were 10 cm in the chest, waist, and hip circumference, regardless of the level, with slight differences in other parts depending on the levels. Thus, manufacturers should establish new grading rules to suit the Korean body shape.

• Journal of the Korean Wood Science and Technology
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• 제43권1호
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• pp.25-35
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• 2015

본 연구에서는 국산 침엽수재의 육안 등급구분과 허용응력설정에 관한 국내의 학술논문을 정리하였다. 국립산림과학원 고시(KFRI 1995-27, KFRI 2000-39, KFRI 2007-3, KFRI 2009-1)를 활용하여 국산 낙엽송재의 육안 등급 구분한 연구를 비교한 결과 등급구분 비율이 연구자마다 상이했다. 보다 신뢰할 수 있는 등급구분 분류를 위해서 공증된 목재이용 기관에서 숙련된 연구자에 의한 등급구분을 시행하여야 할 것으로 사료된다. 허용응력설정에 관한 연구를 고찰한 결과, 연구자 마다 허용응력산출 방법이 ASTM D 245, KS F 2152, JAS 1990으로 모두 상이했다. 이는 침엽수 구조용재(KS F 3020)에서 기준허용응력을 제시하고 있지만 허용응력을 산출하는 명확한 방법이 제시되어 있지 않기 때문인 것으로 나타났다. 따라서 공식적인 허용응력 결정방법이 제정되어야 할 것으로 사료된다.

• Journal of the Korean Wood Science and Technology
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• 제24권1호
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• pp.11-16
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• 1996

The purpose of this paper is to present a summary of assignment design values according to domestic softwood structural lumber grading rules. Allowable stresses for visually graded lumber were determined from basic data on small. clear specimens. The data corrected for variability such as natural defects and other factors. The procedure adopted by Japan was used for assigning allowable design values. Strength ratios in relation to each defect were taken from ASTM D 245-81. Korean pine(Pinus koraiensis S. et Z.), Korean red pine(Pinus densiflora S. et Z.), Japanese larch(Larix leptolepis Gordon) and Needle fir(Abies holophylla Max) were applied to this study. The calculated allowable stresses were same in Korean pine and Korean red pine. These values were highest in Japanese larch lowest in Needle fir. So, it is desirable for these species to be classified into different catagories Species Group. However, accurate comparison in design values on lumber grading rules among U.S., Japan and Korea was somewhat difficult. And full scale testing will be necessary for accurate determination of the correction factors to setting up design values.